my grandmother was diagnosed with heart failure stage 2 (HFpEF) 6 months ago after a heart attack. She is medicated and things seem to settle. She sleeps a lot, but her cardiologist tells us not to worry too much about that. He says that the heart attack drained her energy and with rest she will regain some of her former energy.
Her cardiologist didn't tell us how her prognosis is, i.e. how much time she has left. He told us it's very difficult to predict, even with knowing in what stage she is. He told us that he saw people live decades (until their late 90s) and other people dying within a year.
Is there any way to predict how long my grammy has left or is it like her doctor said? What has been your experience? She is 90 years old. Thank you.